求一个sql语句，谢谢各位
t1
a         b    
1         11
2         11
3         34

t2
c         d
1         0
1         1
1         2
2         0
2         1

要输出的结果！
a       b       c         d
1       11     1         2
2       11     2         1
3       34     null   null

------解决方案--------------------
declare @t1 table (a int,b int)
declare @t2 table (c int,d int)
insert into @t1
select 1,11
union all
select 2,11
union all
select 3,34
insert into @t2
select 1,0
union all
select 1,1
union all
select 1,2
union all
select 2,0
union all
select 2,1
select * from @t1
select * from @t2
--query result
select * from @t1 a left join
(select c,max(d) as d from @t2 group by c) d
on a.a=d.c